Float vent valve



FIG. 1 is a perspective view of a float vent valve showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof, with a portion broken away for convenience of illustration;

FIG. 4 is a perspective view of a modified form of the float vent valve shown in FIG. 1;

FIG. 5 is a top plan view of FIG. 4; and

FIG. 6 is a side elevational view of FIG. 4, with a portion broken away for convenience of illustration. 

The ornamental design of a float vent valve, as shown and described. 